Gissi Francesca, Wang Zhen, Batley Graeme E, Leung Kenneth M Y, Schlekat Christian E, Garman Emily R, Stauber Jenny L
CSIRO Oceans and Atmosphere, Lucas Heights, New South Wales, Australia.
Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, China.
Environ Toxicol Chem. 2020 Dec;39(12):2540-2551. doi: 10.1002/etc.4880. Epub 2020 Nov 10.
The absence of chronic toxicity data for tropical marine waters has limited our ability to derive appropriate water quality guideline values for metals in tropical regions. To aid environmental management, temperate data are usually extrapolated to other climatic (e.g., tropical) regions. However, differences in climate, water chemistry, and endemic biota between temperate and tropical systems make such extrapolations uncertain. Chronic nickel (Ni) toxicity data were compiled for temperate (24 species) and tropical (16 species) marine biota and their sensitivities to Ni compared. Concentrations to cause a 10% effect for temperate biota ranged from 2.9 to 20 300 µg Ni/L, with sea urchin larval development being the most sensitive endpoint. Values for tropical data ranged from 5.5 to 3700 µg Ni/L, with copepod early-life stage development being the most sensitive test. There was little difference in temperate and tropical marine sensitivities to Ni, with 5% hazardous concentrations (95% confidence interval) of 4.4 (1.8-17), 9.6 (1.7-26), and 5.8 (2.8-15) µg Ni/L for temperate, tropical, and combined temperate and tropical species, respectively. To ensure greater taxonomic coverage and based on guidance provided in Australia and New Zealand, it is recommended that the combined data set be used as the basis to generate a jurisdiction-specific water quality guideline of 6 µg Ni/L for 95% species protection applicable to both temperate and tropical marine environments. Environ Toxicol Chem 2020;39:2540-2551. © 2020 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
由于缺乏热带海水的慢性毒性数据，我们难以得出热带地区金属的适当水质准则值。为了辅助环境管理，通常会将温带地区的数据外推至其他气候区（如热带地区）。然而，温带和热带系统在气候、水化学和本地生物群方面存在差异，使得这种外推具有不确定性。我们汇总了温带（24种）和热带（16种）海洋生物群的慢性镍（Ni）毒性数据，并比较了它们对镍的敏感性。导致温带生物群产生10%效应的镍浓度范围为2.9至20300μg Ni/L，其中海胆幼体发育是最敏感的终点指标。热带地区的数据值范围为5.5至3700μg Ni/L，桡足类早期发育阶段是最敏感的测试指标。温带和热带海洋生物对镍的敏感性差异不大，温带、热带以及温带和热带合并物种的5%有害浓度（95%置信区间）分别为4.4（1.8 - 17）、9.6（1.7 - 26）和5.8（2.8 - 15）μg Ni/L。为确保更广泛的分类覆盖范围，并根据澳大利亚和新西兰提供的指南，建议使用合并数据集作为基础，制定适用于温带和热带海洋环境的特定管辖区水质准则，即6μg Ni/L用于95%物种的保护。《环境毒理学与化学》2020年；39:2540 - 2551。© 2020作者。《环境毒理学与化学》由Wiley Periodicals LLC代表SETAC出版。
